<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <!--<h1 class="title-sub">大庆市中西结合医院</h1>-->
      <div style="display: flex;justify-content: center;align-items: center">
        <img src="../assets/images/logo.png" alt="加载失败" width="400"/>
      </div>
      <h1 class="title">医疗不良事件报告管理系统</h1>
      <el-card class="login-card" shadow="never">
        <el-row>
          <el-col :span="10">
            <img src="../assets/images/logo-white.png" alt="图片加载失败" width="140"/>
          </el-col>
          <el-col :span="14">
            <el-form-item prop="username">
              <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号"
                        prefix-icon="el-icon-s-custom"/>
            </el-form-item>
            <el-form-item prop="password">
              <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码"
                        @keyup.enter.native="handleLogin" prefix-icon="el-icon-lock"/>
            </el-form-item>
            <el-checkbox v-model="loginForm.rememberMe" style="margin:0">记住密码</el-checkbox>
          </el-col>
        </el-row>
        <el-form-item style="width:100%;margin: 20px 0 0 0">
          <el-button :loading="loading" size="medium" type="primary" style="width:100%"
                     @click.native.prevent="handleLogin">
            <span v-if="!loading">登 录</span>
            <span v-else>登 录 中...</span>
          </el-button>
        </el-form-item>
      </el-card>
      <!--      <el-form-item prop="username">
              <el-input
                v-model="loginForm.username"
                type="text"
                auto-complete="off"
                placeholder="账号"
              >
                <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
              </el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input
                v-model="loginForm.password"
                type="password"
                auto-complete="off"
                placeholder="密码"
                @keyup.enter.native="handleLogin"
              >
                <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
              </el-input>
            </el-form-item>
            <el-form-item prop="code" v-if="captchaEnabled">
              <el-input
                v-model="loginForm.code"
                auto-complete="off"
                placeholder="验证码"
                style="width: 63%"
                @keyup.enter.native="handleLogin"
              >
                <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
              </el-input>
              <div class="login-code">
                <img :src="codeUrl" @click="getCode" class="login-code-img"/>
              </div>
            </el-form-item>
            <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
            <el-form-item style="width:100%;">
              <el-button
                :loading="loading"
                size="medium"
                type="primary"
                style="width:100%;"
                @click.native.prevent="handleLogin"
              >
                <span v-if="!loading">登 录</span>
                <span v-else>登 录 中...</span>
              </el-button>
              <div style="float: right;" v-if="register">
                <router-link class="link-type" :to="'/register'">立即注册</router-link>
              </div>
            </el-form-item>-->
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span></span>
    </div>
  </div>


</template>

<script>
import {getCodeImg} from "@/api/login";
import Cookies from "js-cookie";
import {encrypt, decrypt} from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          {required: true, trigger: "blur", message: "请输入您的账号"}
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"}
        ],
        code: [{required: true, trigger: "change", message: "请输入验证码"}]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: false,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, {expires: 30});
            Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});
            Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({path: this.redirect || "/"}).catch(() => {
            });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}

.title-sub {
  margin: 0 auto 20px auto;
  text-align: center;
  color: black;
  font-size: 42px;

  text-shadow: 2px 2px 2px #FFF;
}

.title {
  margin: 0 auto 15px auto;
  text-align: center;
  color: black;
  font-size: 36px;
  font-family: 华文行楷;

  //text-shadow: 2px 2px 2px #FFF;
}

.login-form {
  margin-top: -5%;

  border-radius: 6px;
  background: rgba(0, 0, 0, 0);
  width: 500px;
  padding: 15px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}

.login-card {
  //background-color: rgba(255,255,255,0.8);
  border-radius: 10px;

  ::v-deep .el-card__body {
    padding: 22px 22px 20px 22px;
  }
}
</style>
